India-born Mamnoon Hussain, a close aide of Prime Minister Nawaz Sharif, was on Monday sworn in as the President of Pakistan, marking the culmination of the country’s first democratic transition. Supreme Court Chief Justice Iftikhar Chaudhry administered the oath at a ceremony in the presidency here that was attended by Sharif, the three service chiefs and top politicians from all parties. It was a rare event as former President Asif Ali Zardari stepped down on Sunday and also attended the oath-taking ceremony.